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Durable 7′ ′ 178mm Drag Bits for Soft Rock Drilling
2025-04-13
introduction 3990
178mm
Yes
Yes
API 3 1/2'' Reg
Best
Soft,Middle,Hard
Water Well Drilling,Mining,Exploration and etc.
3 Wings Step
sollroc
Ply-Wooden Cases
178mm
China(Mainland)
82071990
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